MaxTech Network Card V32bis User Manual

High Performance  
V.32bis/V.42bis  
14,400 BPS Internal  
FAX/Voice/Data  
Modem  
Featuring Advanced  
Speakerphone Functions  
User's Manual  
Contents  
Section One Introduction ........................... 1  
Section Two Installation ............................. 1  
Section Three AT Command Set .................. 6  
Section Four S Register Summary ........... 12  
Section Five Result Codes......................... 13  
Section Six  
Troubleshooting ................... 14  
Section Seven Specifications ....................... 16  
Section Eight Support And Service ........... 17  
Section Nine FCC, DOC, Copyright And  
Other Notices ....................... 17  
Part #MAN0017 Rev 1.1  
CL-MD1414ECT-SP  
 
3. If you have one or more serial ports on the back of your  
computer,reconfigureyourmodem.Yourmodemisshipped  
set to COM1 on IRQ4. Reconfigure the modem to either  
COM3/IRQ5 or COM4/IRQ2 (refer to Table 2-1 in Sec-  
tion 2.4).  
4. Removeyourcomputer'scover  
Figure 2-2  
Expansion  
(refertoyourcomputer'sowner  
manual).  
Slots  
5. Select any available half-card  
slot, and then remove the slot  
cover (refer to Figure 2-2).  
6. Carefullyslidetheinternalmo-  
demintotheslotyouhavecho-  
sen,applyingevenpressureun-  
til the modem is completely  
seated in the slot.  
7. Fasten the retaining bracket  
withthescrewfromtheslotcover. Makesurethemodemis  
properly aligned. Store the slot cover for future use.  
8. Replace the computer cover and plug in your computer.  
9. Connect the telephone cable from the modem (“LINE”  
connector)tothetelephonewalljack.  
10. Optionally connect: 1) your telephone to the modem's  
“PHONEconnector,2)aspeakertothemodem's“SPKR”  
connector, and 3) a microphone to the modem's “MIC”  
connector.Notethatthedistancebetweenthemicrophone  
and the speaker must be greater than twelve (12) inches  
to prevent unpleasant speaker feedback.  
11. Turn your computer on. Your modem is now installed.  
2.3 Software Installation/Configuration  
Youarenowreadytoinstallandconfigurethecommu-  
nication software. Refer to your software manual for instal-  
lation procedures. Your software must be configured to  
communicate with the modem on the same COM port and  
IRQ line used by the modem.  
If you are using Microsoft Windows 3.x and have  
changedthemodem'soperatingsettingfromthedefaultCOM1/  
IRQ4toCOM3/IRQ5orCOM4/IRQ2toavoidaconflict,you  
must use Windows' Control Panel (in the “Main” Group  
withinProgramManager)toconfigureWindowstorecognize  
the new settings before installing any software. In Control  
Panel, double-click on Ports. Click once on the icon for the  
Com port you have set your modem to. Click the Settings  
button. Click the Advanced button. The Base I/O Port  
2
 
AddressshouldalreadybesetbyWindowstotheCOMport  
address used by the modem (refer to Table 2-1). Change the  
Interrupt Request Line (IRQ) to match the IRQ on the  
modem. If you have set the modem to COM4/IRQ2, do not  
select IRQ2. YouwillneedtosettheIRQinControlPanelto  
IRQ9forWindowstorecognizethemodem.(Inanoperating  
system designed for 286 or better machines, IRQ 9 is  
equivalent (redirected) to IRQ2.)  
A modem setting which skips one or more COM port  
assignments requires special attention in the Windows 3.x  
Control Panel. For example, if your computer is equipped  
with two serial ports (COM1 and COM2) and have set the  
modem to COM4 instead of COM3, the Control Panel  
settings for COM4 may say Default. In this case, Windows  
3.x will operate the modem as the third serial device and  
recognize it as “COM3” (This unusual COM port reassign-  
ment does not occur in future releases of Windows). The  
correct COM4 address (2E8) has been placed into the  
ControlPanelCOM3position.ConfiguretheCOM3entryin  
ControlPanelbychangingtheIRQboxtomatchtheIRQthat  
has been set on the modem. (When running any Windows  
3.x-based communication or fax programs, select COM3 as  
the COM port for the modem.)  
Afterthesesettingsaremade,clickOK.ClickRestart  
Now. Windows can now recognize your modem.  
Note: Since the “COM3” substitution for your  
COM4 modem only occurs under Windows 3.x,  
your DOS communication and fax programs will  
still recognize the modem configuration as COM4.  
We suggest the following communication parameters  
when you first use your data communication software.  
Consult the software manual for information on using these  
and other parameters/features.  
38,400 bps; 8 data bits; no parity; 1 stop bit; RTS/  
CTS flow control set to “on;” initialization string:  
AT&F  
The commands used by the modem are compatible  
withthecommandsetusedbyIntelmodems.SelectanIntel  
144I Faxmodem” type in your data communications soft-  
ware, select a “Generic Class 1” type in your fax software  
and select “Cirrus Logic” in your Voice software.  
3
 
2.4 COM Port and Interrupt Settings  
If your computer is equipped with one or more serial  
ports, you will need to change the COM Port setting on the  
modem (to either COM 3 or 4), or disable the PC's built-in  
COM port.  
An IRQ (interrupt request) is a signal generated by an  
I/Odevicethatnotifiesthecomputerofincomingdata. Your  
internal modem is capable of accessing IRQs 2, 3, 4, and 5.  
I/O devices in your computer cannot share an IRQ with  
another device at the same time. Since IRQs can not be  
sharedatthesametime,COM3isgenerallyconfiguredtouse  
IRQ5,andCOM4touseIRQ2.ThisavoidssharingofIRQs  
with COM 1 (IRQ4) and COM 2 (IRQ3).  
To change the default COM Port or IRQ settings from  
COM1/IRQ4toanothersetting, locatetheSwitchBlock on  
your internal modem (Figure 2-3). Refer to Table 2-1 to  
configure the Switch Block to the COM Port and IRQ  
Figure 2-3 Switch Block SW-1 Location  
SW-1  
Table 2-1 Switch Block Settings  
COM Port  
IRQ  
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6  
1 (3F8)  
default  
4
ON  
ON  
OFF  
OFF  
ON  
OFF  
2 (2F8)  
3 (3E8)  
3
5
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
OFF  
OFF  
ON  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
4*  
ON  
OFF  
OFF  
OFF  
4 (2E8)  
2(9)**  
3*  
OFF  
OFF  
OFF  
OFF  
OFF  
*
Use these IRQs only if your software can not address IRQ5 or IRQ2  
** When using Windows with the modem set for IRQ2, select IRQ9 in  
ControlPanel  
4
 
combination needed for your application. Any time the  
COM or IRQ setting for the modem is changed, the  
settings in the software must be changed to match.  
2.5 Using Fax, Voice, and Speakerphone  
Capabilities of the Modem  
Your modem has built-in advanced FAX, Voice, and  
Speakerphone functions. These functions are accessed  
throughsoftware. PleaseconsultyourFAX/Voice/Speaker-  
phone software manual about procedures on using these  
functions.Notethatthemodem'sFAX/Voice/Speakerphone  
commands are used by the software to implement these  
functions and are not designed to be used as standalone AT  
commands.  
Voice functions include recording and playback of  
voiceprompts(files). Torecordorplaybackvoicewithyour  
modem, attach a telephone to the RJ-11 jack marked  
“PHONEonthebackofthemodem.Followspecificinstruc-  
tionsintheFAX/Voice/Speakerphonesoftwareonrecording  
and playback of voice prompts.  
2.6 Testing Your Modem After Installation  
In order to test your modem you should be familiar  
with your communication software. Load and set up your  
communication software and enter into “terminal mode.”  
MakesurethattheCOMPortandIRQsettingsofthemodem  
match the software. Type AT on your terminal screen and  
press ENTER. You may see “AATT” or nothing on the  
screen.Ineithercase,themodemshouldrespondwithanOK  
or 0. If it does not, please refer to Section 2.4 for information  
on COM Ports and IRQ’s or Section 6 for troubleshooting  
information.  
2.7 Using Your Modem  
The communication software included with your mo-  
dem product provides a user friendly interface to access the  
fax, voice, anddatafunctionsofyourmodem. Thissoftware  
should be sufficient for all of your communication needs.  
There may be times when you need to access the modem  
manually via modem commands. Read Section 3 for a  
summary description of the modem command set before  
manually accessing the modem. You may want to read the  
software manual first, however, as the software may already  
5
 
provideauserfriendlymethodofaccessingthefunctionsyou  
need (i.e. dialing or answering calls).  
2.8 Where To Go From Here  
You should familiarize yourself with the functions  
available from the included software by reading its manual.  
You will be accessing most, if not all, of the modem's  
functions from this software. You may also use any other  
commercially available communication software with the  
modem. Read Section 3 ONLY if you are interested in  
accessingthemodemmanually,andnotthroughtheincluded  
software.Section4and5containreferencematerial,andcan  
be skipped. If you have difficulties getting your modem to  
work, read Section 6, Troubleshooting to find answers to  
commonly asked questions and problems.  
Section Three - AT Command Set  
3.1 Executing Commands  
Commands are accepted by the modem while it is in  
Command Mode. Your modem is automatically in Com-  
mand Mode until you dial a number and establish a connec-  
tion. Commands may be sent to your modem from a PC  
running communication software or any other terminal de-  
vices.  
Yourmodemiscapableofdatacommunicationatrates  
of: 300, 1200, 2400, 4800, 9600, 14400, 19200, 38400, and  
57600 bps. Make sure your COM port baud rate setting in  
your communications software is set to one of the above  
speeds.  
3.2 Command Structure  
All commands sent to the modem must begin withAT  
andendwithENTER. Allcommandsmaybetypedineither  
upper or lower case, but not mixed. To make the command  
line more readable, spaces may be inserted between com-  
mands. If you omit a parameter from a command that  
requires one, it is just like specifying a parameter of 0.  
Example:  
ATH[ENTER]  
This command causes your modem to hang up.  
6
 
3.3 Basic AT Commands  
Inthefollowinglistings,alldefaultsettingsareprinted  
in bold text.  
Command  
Function  
A
Manuallyanswerincomingcall  
A/  
Repeatlastcommandexecuted.Donotprecede  
A/ with AT or follow with ENTER  
AT  
Appearsatthebeginningofeverycommand  
line  
B_  
B0  
CCITT mode  
B1  
Bell mode  
D_  
0 - 9, A-D, # and *  
pulsedialing  
originatecallsinanswermode  
touch-tonedialing  
wait for second dial tone  
pause  
P
R
T
W
,
@
!
waitforfivesecondsofsilence  
flash  
;
return to Command Mode after dialing  
DS=n  
E_  
Dialoneofthefourtelephonenumbers(n=0-  
3)storedinthemodem’snon-volatilememory  
E0  
Commandsarenotechoed  
E1  
Commands are echoed  
+++  
H_  
TIES Escape Characters - Switch from Data  
ModetoCommandMode  
H0  
H1  
Forcemodemon-hook(hangup)  
Forcemodemoff-hook(makebusy)  
I_  
I0  
I1  
I2  
I3  
I4  
Displayproduct-identificationcode  
Factory ROM ID  
Internalmemorytest  
DeviceID  
Internal ID  
L_  
L0  
L1  
L2  
L3  
Lowspeakervolume  
Lowspeakervolume  
Medium speaker volume  
Highspeakervolume  
M_  
M0  
Internalspeakeroff  
M1  
Internal speaker on until carrier detected  
7
 
M2  
M3  
Internalspeakeralwayson  
Internal speaker on until carrier detected and  
offwhiledialing  
N_  
N0  
Connect only at DTE rate  
N1  
Automatic rate negotiation  
O_  
O0  
O1  
Return to Data Mode  
ReturntoDataModeandinitiateanequalizer  
retrain  
P
Set Pulse dial as default  
Q_  
Q0  
Modem sends responses  
Q1  
Modemdoesnotsendresponses  
Sr?  
Sr=n  
T
r=0-30 Read and display value in register r  
Set register r to value n (r=0-30; n=0-255)  
Set Tone Dial as default  
V_  
V0  
Numericresponses  
V1  
Word responses  
X_  
X0  
HayesSmartmodem300compatible  
responses/blinddialing  
X1  
Same as X0 plus all CONNECT responses/  
blinddialing  
X2  
X3  
Same as X1 plus dial tone detection  
Same as X1 plus busy signal detection/blind  
dialing  
X4  
Allresponsesanddialtoneandbusysignal  
detection  
Y_  
Z_  
Y0  
Modem does not send or respond to break  
signals  
Modem sends break signal for four seconds  
beforedisconnecting  
Y1  
Z0  
Reset and retrieve active configuration  
profile 0  
Z1  
Resetandretrieveactiveconfiguration  
profile1  
3.4 Extended AT Commands  
&C_  
&C0 Force Carrier Detect Signal High (ON)  
&C1 TurnonCarrierDetectsignalwhenremote  
carrier signal is present  
&D_  
&D0 Modem ignores the Data Terminal Ready  
signal  
8
 
&D1 ModemreturnstoCommandModeafter DTR  
toggle  
&D2 Modemhangsup,returnstotheCommand  
Mode after DTR toggle  
&D3 ResetsmodemafterDTRtoggle  
&F_  
&G_  
&F  
Recallfactorydefaultconfiguration  
&G0 Guard tone disabled  
&G1 550 Hz guard tone  
&G2 1800 Hz guard tone  
&M_  
&P_  
&M0 Asynchronousoperation  
&P0 United States setting for off-hook (make) -  
to-on-hook (break) ratio  
&P1 UKandHongKongoff-hook(make)-to-on-  
hook (break) ratio  
&S_  
&S0 Force DSR Signal High (ON)  
&S1 DSR is off in command mode, on in on-line  
mode  
&T_  
&T0 Ends test in progress  
&T1 PerformLocalAnalogLoopbackTest  
&T3 Perform Local Digital Loopback Test  
&T4 Grant Remote Digital Loopback Test  
requestbyremotemodem  
&T5 DenyRemoteDigitalLoopbackTest request  
byremotemodem  
&T6 Perform a Remote Digital Loopback Test  
&T7 PerformaRemoteDigitalLoopbackTestand  
Self-Test  
&T8 Perform Local Analog Loopback Test and  
Self-Test  
&U_  
&V_  
&W_  
&U0 Enable Trellis Coding @ V.32  
&U1 Disable Trellis Coding @ V.32  
&V0 DisplaysActiveandStoredProfile0  
&V1 DisplaysActiveandStoredProfile1  
&W0 StorestheactiveprofileasConfiguration  
Profile0  
&W1 StorestheactiveprofileasConfiguration  
Profile1  
&Y_  
&Y0 ConfigurationProfile0activeuponPower  
on or reset  
&Y1 Configuration Profile 1 active upon Poweron  
orreset  
9
 
&Zn=x n=0-3 Storetelephonenumberxintonon-volatile  
RAM  
%E_  
%G_  
%E0 V.22bisauto-retraindisabled  
%E1 V.22bis auto-retrain enabled  
%G0 EnableAutoFallForward/Back  
%G1 DisableAutoFallForward/Back  
3.5 MNP/V.42/V.42bis Commands  
%An  
%C_  
\A_  
n=0- Setauto-reliablefallbackcharacterton(where  
127 n = 0 to 127,ASCII). Requires the \C2setting  
%C0 Disable MNP Class 5 data compression  
%C1 Enable MNP Class 5 data compression  
\A0  
\A1  
\A2  
\A3  
64-character maximum MNP block size  
128-character maximum MNP block size  
192-character maximum MNP block size  
256-character maximum MNP block size  
\Bn  
n=1-9 Send a 1/10 second line break to the modem,  
where n = 1 to 9. At normal connect, the  
default is 3  
\C_  
\C0  
\C1  
\C2  
Do not buffer data during LAPM/MNP  
handshaking  
Buffer all data for 4 seconds, until receiving  
200 characters or until a packet is detected  
Do not buffer data; switch to normal mode  
whenfallbackcharacterisdetected  
\G_  
\J_  
\G0  
\G1  
Disable DCE flow control  
EnableDCEflowcontrol  
J0  
Disable serial port data rate adjustment  
(keep high data rate between DTE and  
modem, regardless of modem-to-modem  
data rate)  
J1  
Enable serial port data rate adjustment so  
serialdatarateautomaticallyadjusts tomatch  
themodem-to-modemdatarate  
\Kn  
n=0-5 Set break control, where n= 0 to 5. Default  
is 5  
\N_  
\N0  
\N1  
\N2  
\N3  
Normaldata-linkonly  
Directdata-linkonly  
MNP data link only  
V.42/MNP/Normaldatalink  
10  
 
\N4  
V.42 data link only  
\O  
Initiate reliable link during a normal link  
\Q_  
\Q0  
\Q1  
\Q2  
Turn off flow control  
XON/XOFFsoftwareflowcontrol  
CTSsignalunidirectionalhardwareflow  
control  
\Q3  
RTS/CTSsignalbi-directionalhardware  
flow control  
\Tn  
Inactivity timer, where n = 0 to 90 minutes.  
Default is 0  
\U  
Accept reliable link during a normal link  
\V_  
\V0  
\V1  
\V2  
Donotsendextendedresponses  
Sendextendedresponseset1  
Send extended response set 2  
\X_  
\X0  
ProcessXON/XOFFbutdon’tpassthrough  
\X1  
ProcessXON/XOFFandpassthrough  
\Y  
\Z  
Switch to reliable link from normal link  
Endthereliableconnectionandswitchto  
normaloperation  
-J  
-J0  
Disableerrorcontroldetectionphase  
-J1  
Enable error control detection phase  
"H  
"H0 V.42bisdatacompressiondisabled  
"H1 Can send but not receive V.42bis data  
compression  
"H2 Can receive but not send V.42bis data  
compression  
"H3 Bidirectional V.42bis data  
compressionenabled  
"On  
n=6- Set maximum V.42bis data block size to n.  
250  
Default is 16  
3.6 Fax Class 1 Commands  
+FAA=n  
Data/Fax auto answer enable. Default is 0  
+FAE=n  
Data/Fax auto answer enable. Default is 0  
Returnscurrentoperatingmode  
Setsoperatingmode  
Returns availablesupportedmodes  
Identifymodemmanufacturer  
Identifyproductmodel  
+FCLASS?  
+FCLASS=n  
+FCLASS=?  
+FMFR?  
+FMDL?  
+FPREV?  
Identifyproductrevision  
11  
 
+FRH=<mod> Receive HDLC data  
+FRHM=<mod>Receivedata  
+FRS=<time> Waitforsilence  
+FRTn  
Faxreceivetestcommand  
+FTH=<mod> Transmit HDLC data  
+FTM=<mod> Transmit data  
+FTS=<time> Stoptransmissionandpause  
+FTTn  
Faxtransmittestcommand  
3.7 Voice Mode Commands  
#VBP  
Generatebeeptone  
#VCL=n  
#VCSD=n  
#VGPS=n  
#VGPC=n  
#VIN  
#VIP=n  
#VLN=n  
#VOUT=n  
#VPH  
Voicemodeselection. Defaultis0  
Commandmodesilencedetection.Defaultis0  
Input pin function selection. Default is 0  
Input pin character selection. Default is 0  
Read general purpose input pins  
Initialize parameter. Default is 0  
Relay/speaker control. Default is 0  
Write to output pins. Default is 0  
Telephoneemulationmode.  
#VPL=n  
#VPY  
Play level. Default is 127  
Playmode  
#VRD  
Recordmode  
#VRL=n  
#VSL=n  
Recording level. Default is 127  
Recordingsilencethresholdlevel.Default  
is 127  
#VSM=n  
#VSQT=n  
#VSR=n  
Sampling mode. Default is CL1  
Record mode “q” silence time. Default is 60  
Sampling rate. Default is 9600  
Record mode “s” silence time. Default is 60  
#VSST=n  
Setion Four - S Registers  
Your modem has 35 registers, designated S0 through  
S30, S37, S90, S108, and S109. Table 4-1 shows the regis-  
ters, their functions, and their default values. Some registers  
can have their values changed by commands. If you use a  
command to change a register value, the command remains  
ineffectuntilyouturnofforresetyourmodem.Yourmodem  
then reverts to the operating characteristics specified in its  
non-volatile memory. Refer to Section 3 for information on  
how to use the AT commands to manipulate the S registers.  
12  
 
Table 4-1 S - Registers  
Function Range/units Default  
Register  
S0 Auto-answerRing  
S1 Ringcounter  
0-255/rings  
0-255/rings  
0
0
S2 Escapecodecharacter  
S3 Carriage return character  
S4 Linefeedcharacter  
S5 Backspacecharacter  
S6 Dial tone wait time  
S7 Remote carrier wait time  
S8 Comma pause time  
S9 Carrierdetecttime  
S10 Carrier loss time  
S11 Touch-tonedialingspeed  
S12 Esc.characterdetecttime  
S13 Reserved  
0-127/ASCII  
0-127/ASCII  
0-127/ASCII  
0-32, 127/ASCII  
0-255/seconds  
1-255/seconds  
0-255/seconds  
0-255/0.1second  
0-255/0.1second  
43  
13  
10  
8
2
30  
2
6
14  
50-255/0.001 second 70  
0-255/0.02second  
50  
S14 Echo,response,dialing,  
originate/answer  
Bit-mapped  
S15 Reserved  
S16 Modemtestoptions  
S17 Reserved  
Bit-mapped  
S18 Modemtesttimer  
S19 Reserved  
0-255/seconds  
0
S20 Reserved  
S21 DTR, DCD, DSR, and  
LongSpaceDisconnect  
S22 Speakerandresponse  
S23 RDL, DTE data rate,  
parity,andguardtone  
Bit-mapped  
Bit-mapped  
Bit-mapped  
S24 Reserved  
S25 DTR delay  
0-100/seconds  
0-255/0.01second  
Bit-mapped  
5
1
S26 RTS/CTS delay interval  
S27 Asyncoperation,CCITT/  
Bellmode  
S28 Reserved  
S29 Reserved  
S30 Sleepmodetime  
S37 Maximumlinespeed  
S90 Disconnecttimer  
S108 Retrainoptions  
S109 LineSpeedpermitted  
0-90/seconds  
0-11  
0-255/seconds  
0-3  
10  
0
0
2
62  
2-62  
Section Five - Result Codes  
13  
 
BASIC RESPONSE CODES  
OK  
0
CONNECT  
1
RING  
ERROR  
NO DIALTONE  
NOANSWER  
CONNECT 4800  
DATA  
2
4
6
8
11  
13  
15  
NO CARRIER  
CONNECT 1200  
BUSY  
CONNECT 2400  
CONNECT 7200  
CONNECT 9600  
3
5
7
10  
12  
14  
FAX  
CONNECT 12000 16  
+FCERROR +F4  
CONNECT 14400 17  
MODIFIED RESPONSE CODES (\V1)  
CONNECT 300/REL  
22  
CONNECT 1200/REL 24  
CONNECT 4800/REL 26  
CONNECT 9600/REL 28  
CONNECT 14400/REL 30  
CONNECT 2400/REL 25  
CONNECT 7200/REL 27  
CONNECT 12000/REL 29  
EXTENDED RESPONSE CODES (\V2)  
CONNECT300/REL-MNP  
32  
34  
35  
36  
37  
38  
39  
40  
42  
44  
45  
46  
47  
48  
49  
50  
54  
55  
56  
57  
58  
59  
60  
64  
65  
66  
67  
CONNECT 1200/REL-MNP  
CONNECT 2400/REL-MNP  
CONNECT 4800/REL-MNP  
CONNECT 7200/REL-MNP  
CONNECT 9600/REL-MNP  
CONNECT 12000/REL-MNP  
CONNECT 14400/REL-MNP  
CONNECT 300/REL-MNP 5  
CONNECT 1200/REL-MNP 5  
CONNECT 2400/REL-MNP 5  
CONNECT 4800/REL-MNP 5  
CONNECT 7200/REL-MNP 5  
CONNECT 9600/REL-MNP 5  
CONNECT 12000/REL-MNP 5  
CONNECT 14400/REL-MNP 5  
CONNECT1200/REL-LAPM  
CONNECT2400/REL-LAPM  
CONNECT4800/REL-LAPM  
CONNECT7200/REL-LAPM  
CONNECT9600/REL-LAPM  
CONNECT12000/REL-LAPM  
CONNECT14400/REL-LAPM  
CONNECT1200/REL-LAPMV.42BIS  
CONNECT2400/REL-LAPMV.42BIS  
CONNECT4800/REL-LAPMV.42BIS  
CONNECT7200/REL-LAPMV.42BIS  
14  
 
CONNECT9600/REL-LAPMV.42BIS  
CONNECT 12000/REL-LAPM V.42BIS  
CONNECT 14400/REL-LAPM V.42BIS  
68  
69  
70  
Section Six - Troubleshooting  
This section describes some of the common problems  
you may encounter while using your modem. If you can not  
resolveyourdifficultyafterreadingthischapter,contactyour  
dealer or vendor for assistance.  
Modem does not respond to commands.  
1. Make sure the modem is not configured with a conflicting  
COM port and IRQ setting (see Section 2.4). Your modem  
cannotbeconfiguredasCOM1(default)ifanotherdevicein  
your system is also configured as COM1. Similarly, IRQ  
settingsmaynotoverlap.  
2. Make sure the communication software is configured to  
“talktothemodemonthecorrectCOMportandIRQsetting  
(same COM port and IRQ setting as the modem). Your  
communication software must know which address your  
modem is using in the system in order to pass data to it.  
Similarly, IRQ settings must be set correctly to receive data  
fromthemodem.  
3. Make sure that your modem is initialized correctly. Your  
modem may have been initialized to not display responses.  
You may factory-reset the modem by issuing AT&F and  
press ENTER. The factory default allows the modem to  
displayresponsesafteracommandhasbeenexecuted.  
4. Make sure the baud rate setting in your software is set to  
57600, 38400, 19200, 14400, 9600, 2400, 1200, or300bps.  
An incorrect baud rate prevents the modem from operating  
properly.  
Modem does not dial.  
1. Makesurethemodemisconnectedtoaworkingphoneline.  
Replace the modem with a working phone to ensure that the  
phonelineisworking.  
2. Make sure the phone line is connected to the jack marked  
“LINE.” Incorrect connection prevents the modem from  
operatingproperly.RefertoSection2.2formodemconnec-  
tioninstructions.  
Modem dials but does not connect.  
1. Make sure the IRQ setting is identical on both the modem  
ANDthesoftware.Modemandsoftwaremustbeconfigured  
15  
 
identically.  
2. Make sure the phone line is working properly. Replace the  
modem with a regular phone and dial the number. If the line  
sounds noisy, you may have difficulty connecting to the  
remotedevice.  
Modem makes a connection but no data appears  
on your screen.  
1. Theremotesystemmaybewaitingtoreceiveyourdatabefore  
it begins. Try pressing the ENTER key a few times.  
2. Make sure the correct data format (data bits, stop bits, and  
parity bits) and flow control (RTS/CTS) method are being  
used.  
3. Makesurethecorrectterminalemulationmodeisbeingused  
(seecommunicationsoftwaremanual).  
4. MakesurethemodemisnotsharinganIRQorCOMportwith  
anotherdevice(seeSection2.4).  
High pitch tone is heard whenever you answer the  
phone.  
1. MakesureAuto-Answeristurnedoff.Yourmodemisfactory  
configuredtoNOTauto-answer.IssueAT&Ftofactoryreset  
yourmodem.  
Modem experiences errors while communicating  
with a remote modem.  
1. MakesuretheDTEspeedisthesameasthemodemconnec-  
tion speed when in Direct Mode (\N1 command in effect).  
2. Make sure the remote systemandyourmodemusethesame  
communication parameters (i.e., baud rate, data bit length,  
parity, and stop bit).  
3. Make sure RTS/CTS hardware flow control is enabled and  
XON/XOFFsoftwareflowcontrolisdisabledinthecommu-  
nicationsoftware.  
4. Make sure the data speed is not faster than your computer's  
capability.MostIBMcompatiblesarecapableof19,200bps  
underDOSandWindows.Operatingathigherspeedsunder  
Windows requires a faster CPU (386/486 or better).  
Modem experiences bursts of errors or suddenly  
disconnects while communicating with a remote  
modem.  
1. Make sure Call Waiting is turned off.  
2. Make sure the phone line does not exhibit excess noise.  
Modem exhibits poor voice record or playback.  
16  
 
1. Make sure the correct modem type is selected in the Voice/  
FAXsoftware.UseCirrusLogicorsimilarselection.Do  
notselectRockwellorRockwellICSconfiguration.  
Section Seven - Specifications  
CCITT/Bell Std.  
V.42bis, V.42, V.32bis, V.32, V.29,  
V.27ter, V.22bis, V.22, V.21, V.17,  
Bell212/103  
MNPprotocols:  
HostInterface:  
COMports:  
IRQlines:  
MNP 5, 4, 3, 2  
8 bit PC bus  
1, 2, 3, 4  
2, 3, 4, 5  
FAXGroup:  
GroupIIISend/ReceiveStandard  
FAXCommandset: EIA/TIA-578 Service Class 1  
VoiceCommandset: CirrusLogic  
EscapeDetection: TIESEscapeSequence  
Transmitlevel:  
-12 dBm +/- 1 dB  
ReceiverSensitivity: -40 dBm  
UART:  
16550 compatible  
Data format:  
Power:  
300-57600 bps (8N1, 7E1,7E2,7O1,7O2)  
0.75 W  
Temperature:  
0 to 55 degrees C (Operating); -20 to 80  
degreesC(Non-operating)  
Section Eight - Support and Service  
In the unlikely event you experience difficulty in the use of this  
product,wesuggestyou:(1)consulttheTroubleshootingsection  
ofthisguideand(2)consultwithyourdealer.Toobtainservicefor  
thisproduct,followtheReturnMerchandiseAuthorizationProce-  
dure as outlined in the Warranty card.  
Section Nine - FCC , DOC & Other Notices  
9.1 FCC Compliance  
This equipmentcomplieswithPart68oftheFCCRules. Onthis  
equipment is a label that contains, among other information, the  
FCCregistrationnumberandRingerEquivalenceNumber(REN)  
forthisequipment.Youmust,uponrequest,providethisinforma-  
tiontoyourtelephonecompany.  
If your telephone equipment causes harm to the telephone net-  
work, the Telephone Company may discontinue your service  
temporarily. If possible, they will notify in advance. But, if  
advance notice isn’t practical, you will be notified as soon as  
17  
 
possible. You will be informed of your right to file a complaint  
with the FCC.  
Your telephone company may make changes in its facilities,  
equipment, operations, or procedures that could affect proper  
operation of your equipment. If they do, you will be notified in  
advance to give you an opportunity to maintain uninterrupted  
telephoneservice.  
TheFCCprohibitsthisequipmenttobeconnectedtopartylinesor  
coin-telephoneservice.  
In the event that this equipment should fail to operate properly,  
disconnecttheequipmentfromthephonelinetodetermineifitis  
causingtheproblem.Iftheproblemiswiththeequipment,discon-  
tinue use and contact your dealer or vendor.  
The FCC also requires the transmitter of a FAX transmission be  
properly identified (per FCC Rules Part 68, Sec. 68.381 (c) (3)).  
9.2 FCC Class B Statement  
Thisequipmenthasbeentestedandfoundtocomplywiththelimits  
for a Class B digital device, pursuant to Part 15 of the FCC Rules.  
Theselimitsaredesignedtoprovidereasonableprotectionagainst  
harmful interference in a residential installation. This equipment  
generates, uses and can radiate radio frequency energy, and if not  
installed and used in accordance with the instructions, may cause  
harmfulinterferencetoradiocommunications.However,thereisno  
guaranteethatinterferencewillnotoccurinaparticularinstallation.  
If this equipment does cause harmful interference to radio or  
televisionreception,whichcanbedeterminedbyturningtheequip-  
ment off and on, the user is encouraged to try to correct the  
interferencebyoneormoreofthefollowingmeasures:  
• Reorientorrelocatethereceivingantenna  
• Increasetheseparationbetweentheequipmentandthereceiver  
• Connecttheequipmentintoanoutletonacircuitdifferentfrom  
thattowhichthereceiverisconnected  
• Consultthedealeroranexperiencedradio/TVtechnicianfor  
help  
Notice: 1)Shieldedcables,ifany,mustbeusedinordertocomply  
with the emission limits. 2) Any change or modification not  
expresslyapprovedbytheGranteeoftheequipmentauthorization  
could void the user’s authority to operate the equipment.  
9.3 DOC Compliance Information  
NOTICE:TheCanadianDepartmentofCommunicationslabel  
identifies certified equipment. This certification means that the  
18  
 
equipmentmeetscertaintelecommunicationsnetworkprotective,  
operational and safety requirements. The Department does not  
guarantee theequipmentwilloperatetotheuser’ssatisfaction.  
Beforeinstallingthisequipment,usersensurethatitispermissible  
to be connected to the facilities of the local telecommunications  
company.Theequipmentmustalsobeinstalledusinganaccept-  
able method of connection. The customer should be aware that  
compliancewiththeaboveconditionsmaynotpreventdegrada-  
tionofserviceinsomesituations.  
Repairs to certified equipment should be made by an authorized  
Canadian maintenance facility designated by the supplier. Any  
repairs or alterations made by the user to this equipment, or  
equipmentmalfunctions,maygivethetelecommunicationscom-  
pany cause to request the user to disconnect the equipment.  
Users should ensure for their own protection that the electrical  
ground connections of the power utility, telephone lines and  
internal metallic water pipe system, if present, are connected  
together. This precaution may be particularly important in rural  
areas.  
Caution: Users should not attempt to make such connections  
themselves,butshouldcontacttheappropriateelectricinspection  
authority, orelectrician, asappropriate.  
NOTICE: The Load Number (LN) assigned to each terminal  
devicedenotesthepercentageofthetotalloadtobeconnectedto  
atelephoneloopwhichisusedbythedevice,topreventoverload-  
ing.Theterminationonaloopmayconsistofanycombinationof  
devices subject only to the requirement that the sum of the Load  
Numbers of all the devices does not exceed 100.  
9.4 Disclaimer, Copyright, And Other Notices  
Theinformationcontainedinthismanualhasbeenvalidatedatthe  
time of this manual's production. The manufacturer reserves the  
right to make any changes and improvements in the product  
described in this manual at any time and without notice. Conse-  
quently the manufacturer assumes no liability for damages in-  
curreddirectlyorindirectlyfromerrors,omissionsordiscrepan-  
cies between the product and the manual.  
All registered trademarks are the property of their respective  
owners.  
Copyright © 1995 All rights reserved. No reproduction of this  
documentinanyformispermittedwithoutpriorwrittenauthori-  
zationfromthemanufacturer.  
FirstEdition  
GZ/DR - Version 1.0  
19  
 
Section One - Introduction  
The 14.4 Kbps Series FAX/Voice/Data Modem con-  
nect your computer to all popular high speed modems  
available today. This manual describes the hardware instal-  
lation procedures for your new modem product. Additional  
information on AT commands and S-registers are provided  
so that your system can be customized for a particular  
operatingenvironment.  
Section Two - Installation  
This section will provide step by step instructions on  
howtoinstallyournew14.4KbpsFAX/Voice/Datamodem.  
Installation of this modem product is a two-step process  
consisting of actual hardware installation and communica-  
tion software installation and configuration.  
2.1 Unpacking Your Modem  
Before you begin your installation, be certain that you  
have all the items listed below. This package contains:  
• A modem  
• A telephone cable  
• User's manual  
• Software for the modem  
• Software user's manual  
2.2 Hardware Installation  
Installation of this modem requires opening and ma-  
nipulating your PC. Exercise caution at all times when  
working with AC powered and static-sensitive equipment.  
Turn off and unplug your PC before installation. Discharge  
any static electricity from your body by touching any metal  
surface.  
1. Turn off and unplug your computer from the AC outlet.  
2. Determine how many serial ports are built into your com-  
puter(examinethebackofyourcomputer). RefertoFigure  
2-1 to identify common serialports.  
Figure 2-1 Common Serial Ports  
male connector  
1
 
3. If you have one or more serial ports on the back of your  
computer,reconfigureyourmodem.Yourmodemisshipped  
set to COM1 on IRQ4. Reconfigure the modem to either  
COM3/IRQ5 or COM4/IRQ2 (refer to Table 2-1 in Sec-  
tion 2.4).  
4. Removeyourcomputer'scover  
Figure 2-2  
Expansion  
(refertoyourcomputer'sowner  
manual).  
Slots  
5. Select any available half-card  
slot, and then remove the slot  
cover (refer to Figure 2-2).  
6. Carefullyslidetheinternalmo-  
demintotheslotyouhavecho-  
sen,applyingevenpressureun-  
til the modem is completely  
seated in the slot.  
7. Fasten the retaining bracket  
withthescrewfromtheslotcover. Makesurethemodemis  
properly aligned. Store the slot cover for future use.  
8. Replace the computer cover and plug in your computer.  
9. Connect the telephone cable from the modem (“LINE”  
connector)tothetelephonewalljack.  
10. Optionally connect: 1) your telephone to the modem's  
“PHONEconnector,2)aspeakertothemodem's“SPKR”  
connector, and 3) a microphone to the modem's “MIC”  
connector.Notethatthedistancebetweenthemicrophone  
and the speaker must be greater than twelve (12) inches  
to prevent unpleasant speaker feedback.  
11. Turn your computer on. Your modem is now installed.  
2.3 Software Installation/Configuration  
Youarenowreadytoinstallandconfigurethecommu-  
nication software. Refer to your software manual for instal-  
lation procedures. Your software must be configured to  
communicate with the modem on the same COM port and  
IRQ line used by the modem.  
If you are using Microsoft Windows 3.x and have  
changedthemodem'soperatingsettingfromthedefaultCOM1/  
IRQ4toCOM3/IRQ5orCOM4/IRQ2toavoidaconflict,you  
must use Windows' Control Panel (in the “Main” Group  
withinProgramManager)toconfigureWindowstorecognize  
the new settings before installing any software. In Control  
Panel, double-click on Ports. Click once on the icon for the  
Com port you have set your modem to. Click the Settings  
button. Click the Advanced button. The Base I/O Port  
2
 
AddressshouldalreadybesetbyWindowstotheCOMport  
address used by the modem (refer to Table 2-1). Change the  
Interrupt Request Line (IRQ) to match the IRQ on the  
modem. If you have set the modem to COM4/IRQ2, do not  
select IRQ2. YouwillneedtosettheIRQinControlPanelto  
IRQ9forWindowstorecognizethemodem.(Inanoperating  
system designed for 286 or better machines, IRQ 9 is  
equivalent (redirected) to IRQ2.)  
Afterthesesettingsaremade,clickOK.ClickRestart  
Now. Windows can now recognize your modem.  
We suggest the following communication parameters  
when you first use your data communication software.  
Consult the software manual for information on using these  
and other parameters/features.  
38,400 bps; 8 data bits; no parity; 1 stop bit; RTS/  
CTS flow control set to “on;” initialization string:  
AT&F  
The commands used by the modem are compatible  
withthecommandsetusedbyIntelmodems.SelectanIntel  
144I Faxmodem” type in your data communications soft-  
ware, select a “Generic Class 1” type in your fax software  
and select “Cirrus Logic” in your Voice software.  
2.4 COM Port and Interrupt Settings  
If your computer is equipped with one or more serial  
ports, you will need to change the COM Port setting on the  
modem (to either COM 3 or 4), or disable the PC's built-in  
COM port.  
An IRQ (interrupt request) is a signal generated by an  
I/Odevicethatnotifiesthecomputerofincomingdata. Your  
internal modem is capable of accessing IRQs 2, 3, 4, and 5.  
I/O devices in your computer cannot share an IRQ with  
another device at the same time. Since IRQs can not be  
sharedatthesametime,COM3isgenerallyconfiguredtouse  
IRQ5,andCOM4touseIRQ2.ThisavoidssharingofIRQs  
with COM 1 (IRQ4) and COM 2 (IRQ3).  
To change the default COM Port or IRQ settings from  
COM1/IRQ4toanothersetting, locatetheSwitchBlock on  
your internal modem (Figure 2-3). Refer to Table 2-1 to  
configure the Switch Block to the COM Port and IRQ  
combination needed for your application. Any time the  
3
 
COM or IRQ setting for the modem is changed, the  
settings in the software must be changed to match.  
Figure 2-3 Switch Block SW-1 Location  
SW-1  
Table 2-1 Switch Block Settings  
COM Port  
IRQ  
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6  
1 (3F8)  
default  
4
ON  
ON  
OFF  
OFF  
ON  
OFF  
2 (2F8)  
3 (3E8)  
3
5
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
ON  
OFF  
OFF  
OFF  
ON  
OFF  
OFF  
ON  
OFF  
ON  
OFF  
OFF  
OFF  
OFF  
4*  
ON  
OFF  
OFF  
OFF  
4 (2E8)  
2(9)**  
3*  
OFF  
OFF  
OFF  
OFF  
OFF  
*
Use these IRQs only if your software can not address IRQ5 or IRQ2  
** When using Windows with the modem set for IRQ2, select IRQ9 in  
ControlPanel  
2.5 Using Fax, Voice, and Speakerphone  
Capabilities of the Modem  
Your modem has built-in advanced FAX, Voice, and  
Speakerphone functions. These functions are accessed  
throughsoftware. PleaseconsultyourFAX/Voice/Speaker-  
phone software manual about procedures on using these  
functions.Notethatthemodem'sFAX/Voice/Speakerphone  
commands are used by the software to implement these  
functions and are not designed to be used as standalone AT  
commands.  
Voice functions include recording and playback of  
voiceprompts(files). Torecordorplaybackvoicewithyour  
modem, attach a telephone to the RJ-11 jack marked  
4
 
“PHONEonthebackofthemodem.Followspecificinstruc-  
tionsintheFAX/Voice/Speakerphonesoftwareonrecording  
and playback of voice prompts.  
2.6 Testing Your Modem After Installation  
In order to test your modem you should be familiar  
with your communication software. Load and set up your  
communication software and enter into “terminal mode.”  
MakesurethattheCOMPortandIRQsettingsofthemodem  
match the software. Type AT on your terminal screen and  
press ENTER. You may see “AATT” or nothing on the  
screen.Ineithercase,themodemshouldrespondwithanOK  
or 0. If it does not, please refer to Section 2.4 for information  
on COM Ports and IRQ’s or Section 6 for troubleshooting  
information.  
2.7 Using Your Modem  
The communication software included with your mo-  
dem product provides a user friendly interface to access the  
fax, voice, anddatafunctionsofyourmodem. Thissoftware  
should be sufficient for all of your communication needs.  
There may be times when you need to access the modem  
manually via modem commands. Read Section 3 for a  
summary description of the modem command set before  
manually accessing the modem. You may want to read the  
software manual first, however, as the software may already  
provideauserfriendlymethodofaccessingthefunctionsyou  
need (i.e. dialing or answering calls).  
2.8 Where To Go From Here  
You should familiarize yourself with the functions  
available from the included software by reading its manual.  
You will be accessing most, if not all, of the modem's  
functions from this software. You may also use any other  
commercially available communication software with the  
modem. Read Section 3 ONLY if you are interested in  
accessingthemodemmanually,andnotthroughtheincluded  
software.Section4and5containreferencematerial,andcan  
be skipped. If you have difficulties getting your modem to  
work, read Section 6, Troubleshooting to find answers to  
commonly asked questions and problems.  
5
 
Section Three - AT Command Set  
3.1 Executing Commands  
Commands are accepted by the modem while it is in  
Command Mode. Your modem is automatically in Com-  
mand Mode until you dial a number and establish a connec-  
tion. Commands may be sent to your modem from a PC  
running communication software or any other terminal de-  
vices.  
Yourmodemiscapableofdatacommunicationatrates  
of: 300, 1200, 2400, 4800, 9600, 14400, 19200, 38400, and  
57600 bps. Make sure your COM port baud rate setting in  
your communications software is set to one of the above  
speeds.  
3.2 Command Structure  
All commands sent to the modem must begin withAT  
andendwithENTER. Allcommandsmaybetypedineither  
upper or lower case, but not mixed. To make the command  
line more readable, spaces may be inserted between com-  
mands. If you omit a parameter from a command that  
requires one, it is just like specifying a parameter of 0.  
Example:  
ATH[ENTER]  
This command causes your modem to hang up.  
3.3 Basic AT Commands  
Inthefollowinglistings,alldefaultsettingsareprinted  
in bold text.  
Command  
Function  
A
Manuallyanswerincomingcall  
A/  
Repeatlastcommandexecuted.Donotprecede  
A/ with AT or follow with ENTER  
AT  
Appearsatthebeginningofeverycommand  
line  
B_  
B0  
CCITT mode  
B1  
Bell mode  
D_  
0 - 9, A-D, # and *  
P
pulsedialing  
R
originatecallsinanswermode  
6
 
T
W
,
touch-tonedialing  
wait for second dial tone  
pause  
@
!
waitforfivesecondsofsilence  
flash  
;
return to Command Mode after dialing  
DS=n  
E_  
Dialoneofthefourtelephonenumbers(n=0-  
3)storedinthemodem’snon-volatilememory  
E0  
Commandsarenotechoed  
E1  
Commands are echoed  
+++  
H_  
TIES Escape Characters - Switch from Data  
ModetoCommandMode  
H0  
H1  
Forcemodemon-hook(hangup)  
Forcemodemoff-hook(makebusy)  
I_  
I0  
I1  
I2  
I3  
I4  
Displayproduct-identificationcode  
Factory ROM ID  
Internalmemorytest  
DeviceID  
Internal ID  
L_  
L0  
L1  
L2  
L3  
Lowspeakervolume  
Lowspeakervolume  
Medium speaker volume  
Highspeakervolume  
M_  
M0  
M1  
M2  
M3  
Internalspeakeroff  
Internal speaker on until carrier detected  
Internalspeakeralwayson  
Internal speaker on until carrier detected and  
offwhiledialing  
N_  
N0  
Connect only at DTE rate  
N1  
Automatic rate negotiation  
O_  
O0  
O1  
Return to Data Mode  
ReturntoDataModeandinitiateanequalizer  
retrain  
P
Set Pulse dial as default  
Q_  
Q0  
Modem sends responses  
Q1  
Modemdoesnotsendresponses  
Sr?  
Sr=n  
T
r=0-30 Read and display value in register r  
Set register r to value n (r=0-30; n=0-255)  
Set Tone Dial as default  
7
 
V_  
V0  
Numericresponses  
V1  
Word responses  
X_  
X0  
HayesSmartmodem300compatible  
responses/blinddialing  
X1  
Same as X0 plus all CONNECT responses/  
blinddialing  
X2  
X3  
Same as X1 plus dial tone detection  
Same as X1 plus busy signal detection/blind  
dialing  
X4  
Allresponsesanddialtoneandbusysignal  
detection  
Y_  
Z_  
Y0  
Modem does not send or respond to break  
signals  
Modem sends break signal for four seconds  
beforedisconnecting  
Y1  
Z0  
Reset and retrieve active configuration  
profile 0  
Z1  
Resetandretrieveactiveconfiguration  
profile1  
3.4 Extended AT Commands  
&C_  
&C0 Force Carrier Detect Signal High (ON)  
&C1 TurnonCarrierDetectsignalwhenremote  
carrier signal is present  
&D_  
&D0 Modem ignores the Data Terminal Ready  
signal  
&D1 ModemreturnstoCommandModeafter DTR  
toggle  
&D2 Modemhangsup,returnstotheCommand  
Mode after DTR toggle  
&D3 ResetsmodemafterDTRtoggle  
&F_  
&G_  
&F  
Recallfactorydefaultconfiguration  
&G0 Guard tone disabled  
&G1 550 Hz guard tone  
&G2 1800 Hz guard tone  
&M_  
&P_  
&M0 Asynchronousoperation  
&P0 United States setting for off-hook (make) -  
to-on-hook (break) ratio  
&P1 UKandHongKongoff-hook(make)-to-on-  
hook (break) ratio  
&S_  
&S0 Force DSR Signal High (ON)  
&S1 DSR is off in command mode, on in on-line  
8
 
mode  
&T_  
&T0 Ends test in progress  
&T1 PerformLocalAnalogLoopbackTest  
&T3 Perform Local Digital Loopback Test  
&T4 Grant Remote Digital Loopback Test  
requestbyremotemodem  
&T5 DenyRemoteDigitalLoopbackTest request  
byremotemodem  
&T6 Perform a Remote Digital Loopback Test  
&T7 PerformaRemoteDigitalLoopbackTestand  
Self-Test  
&T8 Perform Local Analog Loopback Test and  
Self-Test  
&U_  
&V_  
&W_  
&U0 Enable Trellis Coding @ V.32  
&U1 Disable Trellis Coding @ V.32  
&V0 DisplaysActiveandStoredProfile0  
&V1 DisplaysActiveandStoredProfile1  
&W0 StorestheactiveprofileasConfiguration  
Profile0  
&W1 StorestheactiveprofileasConfiguration  
Profile1  
&Y_  
&Y0 ConfigurationProfile0activeuponPower  
on or reset  
&Y1 Configuration Profile 1 active upon Poweron  
orreset  
&Zn=x n=0-3 Storetelephonenumberxintonon-volatile  
RAM  
%E_  
%G_  
%E0 V.22bisauto-retraindisabled  
%E1 V.22bis auto-retrain enabled  
%G0 EnableAutoFallForward/Back  
%G1 DisableAutoFallForward/Back  
3.5 MNP/V.42/V.42bis Commands  
%An  
%C_  
\A_  
n=0- Setauto-reliablefallbackcharacterton(where  
127 n = 0 to 127,ASCII). Requires the \C2setting  
%C0 Disable MNP Class 5 data compression  
%C1 Enable MNP Class 5 data compression  
\A0  
\A1  
\A2  
\A3  
64-character maximum MNP block size  
128-character maximum MNP block size  
192-character maximum MNP block size  
256-character maximum MNP block size  
9
 
\Bn  
n=1-9 Send a 1/10 second line break to the modem,  
where n = 1 to 9. At normal connect, the  
default is 3  
\C_  
\C0  
\C1  
\C2  
Do not buffer data during LAPM/MNP  
handshaking  
Buffer all data for 4 seconds, until receiving  
200 characters or until a packet is detected  
Do not buffer data; switch to normal mode  
whenfallbackcharacterisdetected  
\G_  
\J_  
\G0  
\G1  
Disable DCE flow control  
EnableDCEflowcontrol  
J0  
Disable serial port data rate adjustment  
(keep high data rate between DTE and  
modem, regardless of modem-to-modem  
data rate)  
J1  
Enable serial port data rate adjustment so  
serialdatarateautomaticallyadjusts tomatch  
themodem-to-modemdatarate  
\Kn  
n=0-5 Set break control, where n= 0 to 5. Default  
is 5  
\N_  
\N0  
\N1  
\N2  
\N3  
\N4  
Normaldata-linkonly  
Directdata-linkonly  
MNP data link only  
V.42/MNP/Normaldatalink  
V.42 data link only  
\O  
Initiate reliable link during a normal link  
\Q_  
\Q0  
\Q1  
\Q2  
Turn off flow control  
XON/XOFFsoftwareflowcontrol  
CTSsignalunidirectionalhardwareflow  
control  
\Q3  
RTS/CTSsignalbi-directionalhardware  
flow control  
\Tn  
Inactivity timer, where n = 0 to 90 minutes.  
Default is 0  
\U  
Accept reliable link during a normal link  
\V_  
\V0  
\V1  
\V2  
Donotsendextendedresponses  
Sendextendedresponseset1  
Send extended response set 2  
\X_  
\X0  
ProcessXON/XOFFbutdon’tpassthrough  
\X1  
ProcessXON/XOFFandpassthrough  
10  
 
\Y  
\Z  
Switch to reliable link from normal link  
Endthereliableconnectionandswitchto  
normaloperation  
-J  
-J0  
Disableerrorcontroldetectionphase  
-J1  
Enable error control detection phase  
"H  
"H0 V.42bisdatacompressiondisabled  
"H1 Can send but not receive V.42bis data  
compression  
"H2 Can receive but not send V.42bis data  
compression  
"H3 Bidirectional V.42bis data  
compressionenabled  
"On  
n=6- Set maximum V.42bis data block size to n.  
250  
Default is 16  
3.6 Fax Class 1 Commands  
+FAA=n  
Data/Fax auto answer enable. Default is 0  
+FAE=n  
Data/Fax auto answer enable. Default is 0  
Returnscurrentoperatingmode  
Setsoperatingmode  
Returns availablesupportedmodes  
Identifymodemmanufacturer  
Identifyproductmodel  
+FCLASS?  
+FCLASS=n  
+FCLASS=?  
+FMFR?  
+FMDL?  
+FPREV?  
Identifyproductrevision  
+FRH=<mod> Receive HDLC data  
+FRHM=<mod>Receivedata  
+FRS=<time> Waitforsilence  
+FRTn  
Faxreceivetestcommand  
+FTH=<mod> Transmit HDLC data  
+FTM=<mod> Transmit data  
+FTS=<time> Stoptransmissionandpause  
+FTTn  
Faxtransmittestcommand  
3.7 Voice Mode Commands  
#VBP  
Generatebeeptone  
#VCL=n  
#VCSD=n  
#VGPS=n  
#VGPC=n  
#VIN  
#VIP=n  
#VLN=n  
#VOUT=n  
Voicemodeselection. Defaultis0  
Commandmodesilencedetection.Defaultis0  
Input pin function selection. Default is 0  
Input pin character selection. Default is 0  
Read general purpose input pins  
Initialize parameter. Default is 0  
Relay/speaker control. Default is 0  
Write to output pins. Default is 0  
11  
 
#VPH  
#VPL=n  
#VPY  
Telephoneemulationmode.  
Play level. Default is 127  
Playmode  
#VRD  
Recordmode  
#VRL=n  
#VSL=n  
Recording level. Default is 127  
Recordingsilencethresholdlevel.Default  
is 127  
#VSM=n  
#VSQT=n  
#VSR=n  
Sampling mode. Default is CL1  
Record mode “q” silence time. Default is 60  
Sampling rate. Default is 9600  
Record mode “s” silence time. Default is 60  
#VSST=n  
Setion Four - S Registers  
Your modem has 35 registers, designated S0 through  
S30, S37, S90, S108, and S109. Table 4-1 shows the regis-  
ters, their functions, and their default values. Some registers  
can have their values changed by commands. If you use a  
command to change a register value, the command remains  
ineffectuntilyouturnofforresetyourmodem.Yourmodem  
then reverts to the operating characteristics specified in its  
non-volatile memory. Refer to Section 3 for information on  
how to use the AT commands to manipulate the S registers.  
Table 4-1 S - Registers  
Register  
Function  
Range/units Default  
S0 Auto-answerRing  
S1 Ringcounter  
0-255/rings  
0-255/rings  
0
0
S2 Escapecodecharacter  
S3 Carriage return character  
S4 Linefeedcharacter  
S5 Backspacecharacter  
S6 Dial tone wait time  
S7 Remote carrier wait time  
S8 Comma pause time  
S9 Carrierdetecttime  
S10 Carrier loss time  
S11 Touch-tonedialingspeed  
S12 Esc.characterdetecttime  
S13 Reserved  
0-127/ASCII  
0-127/ASCII  
0-127/ASCII  
0-32, 127/ASCII  
0-255/seconds  
1-255/seconds  
0-255/seconds  
0-255/0.1second  
0-255/0.1second  
43  
13  
10  
8
2
30  
2
6
14  
50-255/0.001 second 70  
0-255/0.02second  
50  
S14 Echo,response,dialing,  
originate/answer  
Bit-mapped  
S15 Reserved  
S16 Modemtestoptions  
Bit-mapped  
12  
 
S17 Reserved  
S18 Modemtesttimer  
S19 Reserved  
S20 Reserved  
S21 DTR, DCD, DSR, and  
LongSpaceDisconnect  
S22 Speakerandresponse  
S23 RDL, DTE data rate,  
parity,andguardtone  
S24 Reserved  
0-255/seconds  
Bit-mapped  
0
Bit-mapped  
Bit-mapped  
S25 DTR delay  
0-100/seconds  
0-255/0.01second  
Bit-mapped  
5
1
S26 RTS/CTS delay interval  
S27 Asyncoperation,CCITT/  
Bellmode  
S28 Reserved  
S29 Reserved  
S30 Sleepmodetime  
S37 Maximumlinespeed  
S90 Disconnecttimer  
S108 Retrainoptions  
S109 LineSpeedpermitted  
0-90/seconds  
0-11  
0-255/seconds  
0-3  
10  
0
0
2
62  
2-62  
Section Five - Result Codes  
BASIC RESPONSE CODES  
OK  
0
CONNECT  
1
RING  
ERROR  
NO DIALTONE  
NOANSWER  
CONNECT 4800  
DATA  
2
4
6
8
11  
13  
15  
NO CARRIER  
CONNECT 1200  
BUSY  
CONNECT 2400  
CONNECT 7200  
CONNECT 9600  
3
5
7
10  
12  
14  
FAX  
CONNECT 12000 16  
+FCERROR +F4  
CONNECT 14400 17  
MODIFIED RESPONSE CODES (\V1)  
CONNECT 300/REL  
22  
CONNECT 1200/REL 24  
CONNECT 4800/REL 26  
CONNECT 9600/REL 28  
CONNECT 14400/REL 30  
CONNECT 2400/REL 25  
CONNECT 7200/REL 27  
CONNECT 12000/REL 29  
EXTENDED RESPONSE CODES (\V2)  
CONNECT300/REL-MNP  
CONNECT 1200/REL-MNP  
CONNECT 2400/REL-MNP  
CONNECT 4800/REL-MNP  
32  
34  
35  
36  
13  
 
CONNECT 7200/REL-MNP  
CONNECT 9600/REL-MNP  
CONNECT 12000/REL-MNP  
CONNECT 14400/REL-MNP  
CONNECT 300/REL-MNP 5  
37  
38  
39  
40  
42  
44  
45  
46  
47  
48  
49  
50  
54  
55  
56  
57  
58  
59  
60  
64  
65  
66  
67  
68  
69  
70  
CONNECT 1200/REL-MNP 5  
CONNECT 2400/REL-MNP 5  
CONNECT 4800/REL-MNP 5  
CONNECT 7200/REL-MNP 5  
CONNECT 9600/REL-MNP 5  
CONNECT 12000/REL-MNP 5  
CONNECT 14400/REL-MNP 5  
CONNECT1200/REL-LAPM  
CONNECT2400/REL-LAPM  
CONNECT4800/REL-LAPM  
CONNECT7200/REL-LAPM  
CONNECT9600/REL-LAPM  
CONNECT12000/REL-LAPM  
CONNECT14400/REL-LAPM  
CONNECT1200/REL-LAPMV.42BIS  
CONNECT2400/REL-LAPMV.42BIS  
CONNECT4800/REL-LAPMV.42BIS  
CONNECT7200/REL-LAPMV.42BIS  
CONNECT9600/REL-LAPMV.42BIS  
CONNECT 12000/REL-LAPM V.42BIS  
CONNECT 14400/REL-LAPM V.42BIS  
Section Six - Troubleshooting  
This section describes some of the common problems  
you may encounter while using your modem. If you can not  
resolveyourdifficultyafterreadingthischapter,contactyour  
dealer or vendor for assistance.  
Modem does not respond to commands.  
1. Make sure the modem is not configured with a conflicting  
COM port and IRQ setting (see Section 2.4). Your modem  
cannotbeconfiguredasCOM1(default)ifanotherdevicein  
your system is also configured as COM1. Similarly, IRQ  
settingsmaynotoverlap.  
2. Make sure the communication software is configured to  
“talktothemodemonthecorrectCOMportandIRQsetting  
(same COM port and IRQ setting as the modem). Your  
communication software must know which address your  
modem is using in the system in order to pass data to it.  
14  
 
Similarly, IRQ settings must be set correctly to receive data  
fromthemodem.  
3. Make sure that your modem is initialized correctly. Your  
modem may have been initialized to not display responses.  
You may factory-reset the modem by issuing AT&F and  
press ENTER. The factory default allows the modem to  
displayresponsesafteracommandhasbeenexecuted.  
4. Make sure the baud rate setting in your software is set to  
57600, 38400, 19200, 14400, 9600, 2400, 1200, or300bps.  
An incorrect baud rate prevents the modem from operating  
properly.  
Modem does not dial.  
1. Makesurethemodemisconnectedtoaworkingphoneline.  
Replace the modem with a working phone to ensure that the  
phonelineisworking.  
2. Make sure the phone line is connected to the jack marked  
“LINE.” Incorrect connection prevents the modem from  
operatingproperly.RefertoSection2.2formodemconnec-  
tioninstructions.  
Modem dials but does not connect.  
1. Make sure the IRQ setting is identical on both the modem  
ANDthesoftware.Modemandsoftwaremustbeconfigured  
identically.  
2. Make sure the phone line is working properly. Replace the  
modem with a regular phone and dial the number. If the line  
sounds noisy, you may have difficulty connecting to the  
remotedevice.  
Modem makes a connection but no data appears  
on your screen.  
1. Theremotesystemmaybewaitingtoreceiveyourdatabefore  
it begins. Try pressing the ENTER key a few times.  
2. Make sure the correct data format (data bits, stop bits, and  
parity bits) and flow control (RTS/CTS) method are being  
used.  
3. Makesurethecorrectterminalemulationmodeisbeingused  
(seecommunicationsoftwaremanual).  
4. MakesurethemodemisnotsharinganIRQorCOMportwith  
anotherdevice(seeSection2.4).  
High pitch tone is heard whenever you answer the  
phone.  
1. MakesureAuto-Answeristurnedoff.Yourmodemisfactory  
configuredtoNOTauto-answer.IssueAT&Ftofactoryreset  
yourmodem.  
15  
 
Modem experiences errors while communicating  
with a remote modem.  
1. MakesuretheDTEspeedisthesameasthemodemconnec-  
tion speed when in Direct Mode (\N1 command in effect).  
2. Make sure the remote systemandyourmodemusethesame  
communication parameters (i.e., baud rate, data bit length,  
parity, and stop bit).  
3. Make sure RTS/CTS hardware flow control is enabled and  
XON/XOFFsoftwareflowcontrolisdisabledinthecommu-  
nicationsoftware.  
4. Make sure the data speed is not faster than your computer's  
capability.MostIBMcompatiblesarecapableof19,200bps  
underDOSandWindows.Operatingathigherspeedsunder  
Windows requires a faster CPU (386/486 or better).  
Modem experiences bursts of errors or suddenly  
disconnects while communicating with a remote  
modem.  
1. Make sure Call Waiting is turned off.  
2. Make sure the phone line does not exhibit excess noise.  
Modem exhibits poor voice record or playback.  
1. Make sure the correct modem type is selected in the Voice/  
FAXsoftware.UseCirrusLogicorsimilarselection.Do  
notselectRockwellorRockwellICSconfiguration.  
Section Seven - Specifications  
CCITT/Bell Std.  
V.42bis, V.42, V.32bis, V.32, V.29,  
V.27ter, V.22bis, V.22, V.21, V.17,  
Bell212/103  
MNPprotocols:  
HostInterface:  
COMports:  
IRQlines:  
MNP 5, 4, 3, 2  
8 bit PC bus  
1, 2, 3, 4  
2, 3, 4, 5  
FAXGroup:  
GroupIIISend/ReceiveStandard  
FAXCommandset: EIA/TIA-578 Service Class 1  
VoiceCommandset: CirrusLogic  
EscapeDetection: TIESEscapeSequence  
Transmitlevel:  
-12 dBm +/- 1 dB  
ReceiverSensitivity: -40 dBm  
UART:  
16550 compatible  
Data format:  
Power:  
300-57600 bps (8N1, 7E1,7E2,7O1,7O2)  
0.75 W  
16  
 
Temperature:  
0 to 55 degrees C (Operating); -20 to 80  
degreesC(Non-operating)  
Section Eight - Support and Service  
In the unlikely event you experience difficulty in the use of this  
product,wesuggestyou:(1)consulttheTroubleshootingsection  
ofthisguideand(2)consultwithyourdealer.Toobtainservicefor  
thisproduct,followtheReturnMerchandiseAuthorizationProce-  
dure as outlined in the Warranty card.  
Section Nine - FCC , DOC & Other Notices  
9.1 FCC Compliance  
This equipmentcomplieswithPart68oftheFCCRules. Onthis  
equipment is a label that contains, among other information, the  
FCCregistrationnumberandRingerEquivalenceNumber(REN)  
forthisequipment.Youmust,uponrequest,providethisinforma-  
tiontoyourtelephonecompany.  
If your telephone equipment causes harm to the telephone net-  
work, the Telephone Company may discontinue your service  
temporarily. If possible, they will notify in advance. But, if  
advance notice isn’t practical, you will be notified as soon as  
possible. You will be informed of your right to file a complaint  
with the FCC.  
Your telephone company may make changes in its facilities,  
equipment, operations, or procedures that could affect proper  
operation of your equipment. If they do, you will be notified in  
advance to give you an opportunity to maintain uninterrupted  
telephoneservice.  
TheFCCprohibitsthisequipmenttobeconnectedtopartylinesor  
coin-telephoneservice.  
In the event that this equipment should fail to operate properly,  
disconnecttheequipmentfromthephonelinetodetermineifitis  
causingtheproblem.Iftheproblemiswiththeequipment,discon-  
tinue use and contact your dealer or vendor.  
The FCC also requires the transmitter of a FAX transmission be  
properly identified (per FCC Rules Part 68, Sec. 68.381 (c) (3)).  
9.2 FCC Class B Statement  
Thisequipmenthasbeentestedandfoundtocomplywiththelimits  
for a Class B digital device, pursuant to Part 15 of the FCC Rules.  
Theselimitsaredesignedtoprovidereasonableprotectionagainst  
17  
 
harmful interference in a residential installation. This equipment  
generates, uses and can radiate radio frequency energy, and if not  
installed and used in accordance with the instructions, may cause  
harmfulinterferencetoradiocommunications.However,thereisno  
guaranteethatinterferencewillnotoccurinaparticularinstallation.  
If this equipment does cause harmful interference to radio or  
televisionreception,whichcanbedeterminedbyturningtheequip-  
ment off and on, the user is encouraged to try to correct the  
interferencebyoneormoreofthefollowingmeasures:  
• Reorientorrelocatethereceivingantenna  
• Increasetheseparationbetweentheequipmentandthereceiver  
• Connecttheequipmentintoanoutletonacircuitdifferentfrom  
thattowhichthereceiverisconnected  
• Consultthedealeroranexperiencedradio/TVtechnicianfor  
help  
Notice: 1)Shieldedcables,ifany,mustbeusedinordertocomply  
with the emission limits. 2) Any change or modification not  
expresslyapprovedbytheGranteeoftheequipmentauthorization  
could void the user’s authority to operate the equipment.  
9.3 DOC Compliance Information  
NOTICE:TheCanadianDepartmentofCommunicationslabel  
identifies certified equipment. This certification means that the  
equipmentmeetscertaintelecommunicationsnetworkprotective,  
operational and safety requirements. The Department does not  
guarantee theequipmentwilloperatetotheuser’ssatisfaction.  
Beforeinstallingthisequipment,usersensurethatitispermissible  
to be connected to the facilities of the local telecommunications  
company.Theequipmentmustalsobeinstalledusinganaccept-  
able method of connection. The customer should be aware that  
compliancewiththeaboveconditionsmaynotpreventdegrada-  
tionofserviceinsomesituations.  
Repairs to certified equipment should be made by an authorized  
Canadian maintenance facility designated by the supplier. Any  
repairs or alterations made by the user to this equipment, or  
equipmentmalfunctions,maygivethetelecommunicationscom-  
pany cause to request the user to disconnect the equipment.  
Users should ensure for their own protection that the electrical  
ground connections of the power utility, telephone lines and  
internal metallic water pipe system, if present, are connected  
together. This precaution may be particularly important in rural  
areas.  
Caution: Users should not attempt to make such connections  
18  
 
themselves,butshouldcontacttheappropriateelectricinspection  
authority, orelectrician, asappropriate.  
NOTICE: The Load Number (LN) assigned to each terminal  
devicedenotesthepercentageofthetotalloadtobeconnectedto  
atelephoneloopwhichisusedbythedevice,topreventoverload-  
ing.Theterminationonaloopmayconsistofanycombinationof  
devices subject only to the requirement that the sum of the Load  
Numbers of all the devices does not exceed 100.  
9.4 Disclaimer, Copyright, And Other Notices  
Theinformationcontainedinthismanualhasbeenvalidatedatthe  
time of this manual's production. The manufacturer reserves the  
right to make any changes and improvements in the product  
described in this manual at any time and without notice. Conse-  
quently the manufacturer assumes no liability for damages in-  
curreddirectlyorindirectlyfromerrors,omissionsordiscrepan-  
cies between the product and the manual.  
All registered trademarks are the property of their respective  
owners.  
Copyright © 1995 All rights reserved. No reproduction of this  
documentinanyformispermittedwithoutpriorwrittenauthori-  
zationfromthemanufacturer.  
FirstEdition  
GZ/DR - Version 1.1  
19  
 

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